具有摩擦阻尼结点之结构动力分析

DYNAMIC ANALYSIS OF STRUCTURES WITH FRICTIONAL JOINTS

本文将增量谐波平衡法(Incremental Harmonic Balance Method, I. H. B Method)结合组抗方法用于分析具有摩擦结点之结构稳态动力响应。这方法之主要优点是能将线性结构与摩擦结点分开来考虑。当摩擦结点之自由度远小于线性结构之自由度时,计算是很经济的。发展了一个分析这种系统之计算程序可与一般有限元结构分析程序如SAPV或ADINA相连,作为后处理程序。

The I. H. B. (Increamental Harmonic Balance) Method in association with receptancemethod was be used to analyze the steady dynamic response of structures with locally frictional joints. The main advantage of this method is that the linearstructure and frictional joints can be considered seperately. The computationcost is very low, while the Degrees of freedom related to frictional are muchfewer than that of a linear structure. A computer program was developed as a post processing subroutine, which can be connected with a general F. E. M program as SAP or ADINA.